Eaton NZMN2-AF45-BT-NA Molded Case Breaker - UL Listed
Part Number: NZMN2-AF45-BT-NA
Quick Summary
Electricians rely on the Eaton NZMN2-AF45-BT-NA molded case circuit breaker for reliable distribution protection in industrial panels. End users often struggle with selecting protection that fits compact spaces, tolerates startup inrush, and simplifies maintenance. UL Listed certification reinforces safety and regulatory compliance, while the NZMN2 frame delivers a 50 kAIC interrupt rating for robust fault protection. In practice, this combination reduces panel footprint, improves uptime, and simplifies service with front-frame mounting and compatible accessories. Designed for industrial automation environments, it supports standard distribution schemes and integrates with motor drives and protective accessories. This combination translates into predictable trip characteristics, easier procurement, and lower lifecycle costs.
Product Information
Extended Description
NZMN2-AF45-BT-NA Eaton: Eaton Series NZM complete molded case circuit breaker, NZM2-frame, NZMN2, Thermal-magnetic trip, Three-pole, 45A, 690 Vac, 750 Vdc, 50 kAIC, Box, Distribution circuit protection, 45-45A, 300-500A delayed, Front frame clamp, 45-45A
Product Name
Eaton Series NZM complete molded case circuit breaker
Catalog Number
NZMN2-AF45-BT-NA
EAN
4015081073030
Product Length/Depth
4.05 in
Product Height
7.24 in
Product Width
4.13 in
Product Weight
4.1 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Certifications
UL Listed
Amperage Rating
45 A
Voltage rating
690 Vac, 750 Vdc
Trip Type
T268
Circuit breaker type
NZMN2
Terminals
Box
Frame
NZM2
Class
Distribution circuit protection
Accessories
Rocker lever, motor drive
Adjustment range short-circuit release
300-500A delayed
Setting Range Ol Protector
45-45A
Short-circuit breaking capacity
50 kAIC
Interrupt rating
50 kAIC
Connection
Front frame clamp
Overload range
45-45A
Number of poles
Three-pole
The NZMN2-AF45-BT-NA is rated for 45 A with a voltage capability of 690 Vac and 750 Vdc, enabling safe protection across common industrial feeders. This precise rating minimizes nuisance trips in normal operation while providing robust fault interruption when currents spike, improving overall system reliability in panelboards and motor control centers. The three-pole design aligns with standard three-phase systems, delivering balanced protection and straightforward coordination for mixed-load environments such as conveyors, pumps, and presses. With a 50 kAIC short-circuit breaking capacity, the device withstands high fault currents typical of industrial plants, while an adjustable short-circuit release range of 300-500 A (delayed) enables tuning for system dynamics and startup profiles. Front frame clamp terminals and box connections simplify installation, reduce labor time, and support front-access servicing in hinged or mounted enclosures. Optional accessories, including rocker lever and motor drive, extend retrofit capability and enhance control integration. The warranty and UL Listed certification further reinforce compliance, risk management, and total cost of ownership for distributors and operators in heavy industry.
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FAQs
This unit uses a front frame clamp with box terminals, enabling secure mounting in standard distribution panels. It is designed for three-pole applications and fits NZM2 frame configurations, which simplifies integration with existing protection schemes and minimizes field modifications during upgrades.
A 50 kAIC interrupt capacity ensures safe interruption of high-magnitude fault currents common in large motors and feeders. This rating provides robust protection, reduces the risk of equipment damage, and supports compliance with typical industrial protection standards for medium- to large-scale applications.
Yes. The device is rated for 690 Vac and 750 Vdc, making it appropriate for mixed-voltage industrial panels and motor control centers. Its three-pole design supports balanced three-phase protection, with a T268 trip characteristic suitable for varied load profiles.
Accessories include a rocker lever for easier manual operation and a motor drive option for remote or automated control. These accessories simplify commissioning, enable remote control, and support retrofit projects without replacing the entire breaker.
The product carries UL Listed certification, indicating compliance with recognized safety standards. Warranty terms follow Eaton’s policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first, helping protect against early-life defects.